SdpoSerial component lazarus / 5-Lazarus Extra Components ---------------------------------------------------------------------- lexgei ยท 2015-10-01 20:10 Hi. I try to use SdpoSerial on Raspberry PI 2 with Lazarus. When I activate the port I get this error message : Exception class "EThread" with message : Semaphore init failed (possibly too many concurrent threads) Any suggestions ? Regards Geir